MM#009 Default HESSI Target

Max Millennium Chief Observer mmchiefobserver at gmail.com
Tue Dec 22 10:02:46 MST 2015


Dear RHESSI Collaborators,

The level of solar activity is moderate. NOAA region 12470 has decayed
over the past 24 hours. Yesterday's target region is now designated as
NOAA 12472 and was first classified as an alpha/H-type sunspot group.
This region now appears to have at least a beta magnetic class, with
extensive trailing plage. In the past 24 hours, another region rotated
over the South East limb and is designated as NOAA 12473. This region
has grown since becoming visible and produced the largest flare since
the last message (an M1.6 on 22-Dec-2015 at 03:15 UT). NOAA 12473 was
initially classified as a beta/C-type sunspot group, but this should
be revised to (at least) a D-type region as the leading and trailing
spots each have mature penumbrae. More C-class activity is expected,
with a good chance for additional low-to-mid M-class flares.

The position of NOAA 12473 on 22-Dec-2015 at 17:00 UT is:

S22E70, ( -850", -356" )

See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.

Regards,

Shaun Bloomfield (Trinity College Dublin)


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